Biological nutrient removal device using the separated currents of the anaerobic and anoxic tank

摘要

The present invention, in the wastewater treatment device, the anaerobic tank and the anaerobic tank to treat the phosphorus (Phosphorus) by removing the continuous flow of the anaerobic tank and denitrification tank to install the anaerobic tank and the denitrification tank parallel to the flow direction of the treated water so that the treated water is introduced. By separating and growing microorganisms in a denitrification tank that treats nitrogen and nitrogen (independent culture), the conversion time of enzymes according to the environment of microorganisms is shortened so that the overall water treatment time can be greatly improved (shortened). .;In addition, the present invention is to return the sludge of the sedimentation tank to the anaerobic tank to maintain the proper concentration of the anaerobic microorganism, and in the denitrification tank to install the fluidized bed microorganism (or carrier: Media) to prevent the loss of denitrifying microorganism, The internal return water of the microbial separation tank is simultaneously introduced into the denitrification tank to secure the carbon source (COD) consumed for denitrification, and the treated water of the anaerobic tank and the denitrification tank is simultaneously introduced into the aeration tank at the rear stage, so that excessive intake of nitrification and released phosphorus Simultaneously, the fluidized bed of the denitrification tank uses a rotating medium to maintain a constant concentration of microorganisms in the denitrification tank, and the microbial separation tank minimizes the amount of microorganisms introduced from the denitrification tank to accumulate inside the denitrification tank. This is to reduce the amount of sludge.